File 'oberbayern-latest.osm.pbf' is the base map required to calculate walking distances using the stata module osrmtime
 > Map is avlb. for download from GEOFABRIK: http://download.geofabrik.de/europe/germany/bayern.html (* downloaded April 2021 *)
 > the other files in this folder are created when the 'osrmprepare' command is initially executed (see dofile).